Return pullet



' 2 Sheets-Sheet 1.

JVVENTOR 1 .dttorney L. HPAUL. RETURN PULLEY.

Patented Feb. 24,1891

l I c .ZflammwF/WauZ (ModeL) 2 Sheets-Sheet 2.

L. I-IQPAUL. RETURN PULLEY.

Patented Feb. 24, 1-891.

' l/VVEIVTOI? Tn: NORRIS wn zns 0b., qnofo ump WASHINGTON n c [NITESTATE LAWRENCE H. PAUL, OF WYOMING, IOlVA.

RETURN-PULLEY.

SPECIFICATION forming part of Letters Patent No. 447,199, dated February24, 1891.

Application filed July 19,1890. Serial No. 359,297. (Modeh) To aZZ whomit may concern:

Be it known that I, LAWRENCE I-I.PAUL, a citizen of the United States,and a resident of WVyoming, in the county of Jones and State of Iowa,have invented certain new and useful Improvements in Return-Pulleys; andI do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings,

and to letters of reference marked thereon, which form a part of thisspecification.

Figure 1 of the drawings is a verticalsection. Fig. 2 is a top planview. Fig. 3 is a detail view. Fig. 4 is aview showing the devicemounted in operative position, two of the supports 0 not shown.

This invention relates to certain improvements in pulleys; and itconsists in the construction and combination of parts, as willhereinafter appear. a

In the drawings, A refers to the pulley, whose axle or journal a is heldor journaled in either of two openings bin a base 0, arranged betweenthe heel ends of a horseshoe shaped groove d in said base, said journalhaving preferably a rivet-head at its lower end and a screw-thread andnut upon its upper end. The base cis suitably secured upon supports 0,and has projecting downwardly and outwardly from two corners thereof, atthat end near to which the journal-openings Z) are arranged, twoinclinedbifurcated brackets e, to each of which is connected a brace f, whilenear the opposite corners of said base are two other similar brackets g,to each of which is connected a laterally-inclined brace B is alever-pawl pivoted upon the projecting portion of the journal or axle aof the pulley A, and provided upon its under side with a pivotedreversible tooth or dog b engaging a circular series of cogs or teeth gon the inner surface of a circular flange or rim g on the upper side ofsaid pulley. The leverpawl B extends downwardly and outwardly, and hasupon the under side of its lower end a stud or projection b whichtraverses one-half of the horseshoe-shaped groove d in the base 0, assaid lever-pawl is manipulated to cause its tooth or dog to engage theteeth or cogs of the pulley A, thus effecting the movement of saidpulley. The sweep or movement of the lever-pawl B is limited with thepulley in its present position by the engagement of the projection orstud b with a stop it at the center of the groove 01 and with one or twostops h' at the ends of said groove. The sweep or movement of saidlever-pawl B is limited with the pulley A adjusted to the opposite sideof the base 0 by the engagement of the projection or stud b with thestop it and the stop h at the opposite end of the groove d.

The shifting of the position of the pulley A to cause it to drive theline or cable to the right or left is effected by adjusting the axle orjournal (1 into either one or the other of the two openings 1) in thebase 0. This pulley, which I call a return-pulley, is used for fillinglong hay-barns in connection with a carrier, and by its peculiarconstruction th e horse used in its operation with the carrier has totravel but half the distance usually required.

In using the device a post is driven in the ground at a distance fromthe barn determined by the height and length of the haycarrier track,and the pulley mechanism de scribed is secured to the top of the post,the braces being placed in position. The horse is attached to the end ofthe fork and carrieroperating rope and is driven out to and around thepost, the braces causing the rope as the horse passes around to becarried up and caught around the wheel or pulley. The horse is thendriven back to the startingpoint, the distance of the post being suchthat when he has arrived at this point the fork has been carried to itsunloading-point. ward pull is then given to the rope, causing the pawl bof the lever-pawl B to engage the lugsor teeth g of the wheel or pulley,said wheel or pulley as it turns backward carrying with it thelever-pawl until the latter is stopped by the stop projection in thehorseshoe-shaped groove, when the parts become locked, throwing the lineor rope off from the device and leaving it free to allow the carrier andfork to return for another load.

It will be seen that the horse, when one load is at the unloading-point,is itself back to its starting-point, ready to commence with the Abacknext fork-load, instead of being the whole length of theoperating-rope away from this point and having to return before beingready to start again. In this manner it has only one-half the distanceto travel, and the rope is saved the wear of dragging a greater part ofthe time upon the ground.

It is evident that this pulleyis adapted for other purposes, as well asfor the one just de scribed.

As soon as the rope is again carried up onto the pulley, as the horsegoes out and around with the next load, the lever B and its stop 11 willbe released, and by the movement of the said pulley will be carriedaround to the stop at the opposite end of its groove or way, Where itwill remain until the reverse pull is again given the rope.

Having described this invention, what I claim, and desire to secure byLetters Patent, 1s-

1. The pulley having in its upper side an annular series of teeth orcogs, the base having a horseshoe-shaped groove, at the center and endsof which are steps, the shiftable axle or journal of said pulley adaptedto be adjusted into either one of two openings in said base, and thelever-pawl fulcrumed upon said axle or journal and having a reversibletooth or dog engaging said teeth or cogs, said lever-pawl also having astud or projection traversing said groove and adapted to engage thecenter stop and one or the other of the end stops, substantially asspecified.

2. The combination, with the pulley and its journal or axle andatatnating lever'pawl, of the base having a horseshoe-shaped groot'etraversed by a stud or projection on said lever, said stud or projectionadapted to engage a stop at the center of said groove and one or theother of two end stops, one at each end of said groove, said base havingupon one end at the corners, as also at the opposite end near thecorners thereof, downwardly and outwardly inclined bifurcated bracketsadapted to have connection with braces, substantially as set forth.

In testimony whereof I afiix my signaturein presence of two witnesses.

LAW'RENOE l-I. PAUL.

Witnesses:

WILLIAM P. WILSON, WALTER GRUNDROD.

